// Returns the list of Tokens on given page (id), from db
public object Tokens(int page, int limit)
{
if (limit < 10 || limit > 100)
{
limit = 25;
}
if (page <= 0)
{
page = 1; // Page
}
using (var db = CsmonDbContext.Create())
{
var tokensCount = db.Tokens.Count();
var lastPage = ConvUtils.GetNumPages(tokensCount, limit);
var tokens = db.Tokens.Skip((page - 1) * limit).Take(limit).ToList();
// Prepare all data for page and return
var result = new
{
Tokens = tokens,
Page = page,
HaveNextPage = page < lastPage,
LastPage = lastPage,
NumStr = tokensCount > 0 ? $"{(page - 1) * limit + 1} - {(page - 1) * limit + tokens.Count} of {tokensCount}" : "-"
};
for (var i = 1; i <= result.Tokens.Count; i++)
{
result.Tokens[i - 1].Index = i + (page - 1) * limit;
}
return(result);
}
}
public Task StartAsync(CancellationToken cancellationToken)
{
try
{
// Create states for each network
foreach (var net in Network.Networks)
{
_states.Add(net.Id, new TpsServiceState());
}
// Check DB availability
using (var db = CsmonDbContext.Create())
{
var unused = db.Tps.Count();
}
// Create timers
_putTimer = new Timer(OnPutTimer, null, _periodPut, 0);
_getTimer = new Timer(OnGetTimer, null, _periodGet, 0);
}
catch (Exception e)
{
// Log exception
_logger.LogError(e, "");
}
return(Task.CompletedTask);
}
private void OnGetTimer(object state)
{
using (var db = CsmonDbContext.Create())
{
// Delete all points older than a month
var endDate = DateTime.Now.AddDays(-30);
var unused = db.Database.ExecuteSqlCommand($"DELETE Tps WHERE Time < {endDate}");
}
// Schedule next time
_getTimer.Change(_periodGet, 0);
}
// Points within a month, with 1 day interval
public TpsInfo GetPointsMonth(string net)
{
using (var db = CsmonDbContext.Create())
{
// Need data for last month
var startDate = DateTime.Now.AddDays(-30);
var endDate = DateTime.Now;
// Query points from db
var points = db.Points.FromSql(
$"SELECT dateadd(day, datediff(day, 0, [Time]), 0) as X, Sum(Value) / Count(Value) as Y\r\nFROM Tps\r\nWHERE Time >= {startDate} AND Time <= {endDate} AND Network = {net}\r\nGROUP BY dateadd(day, datediff(day, 0, [Time]), 0)\r\nORDER BY X")
.ToArray();
// Prepare and return result
return(new TpsInfo {
Points = points
});
}
}
// Deletes all points from db, when network restart detected
public static void Reset(string net)
{
Task.Factory.StartNew(() =>
{
try
{
using (var db = CsmonDbContext.Create())
{
db.Database.ExecuteSqlCommand($"DELETE Tps WHERE Network='{net}'", net);
}
NLog.LogManager.GetCurrentClassLogger().Info($"TpsService Reseted network={net}");
}
catch (Exception e)
{
NLog.LogManager.GetCurrentClassLogger().Error(e);
}
});
}
// Returns Token data by id, from db
public TokenInfo Token(string id)
{
using (var db = CsmonDbContext.Create())
{
var token = db.Tokens.FirstOrDefault(t => t.Address == id);
if (token == null)
{
return(new TokenInfo());
}
// Prepare all data for page and return
var result = new TokenInfo
{
Found = true,
Token = token,
Properties = db.TokensProperties.Where(tp => tp.TokenAddress == id).ToList(),
Transactions = new List <TransactionInfo>()
};
return(result);
}
}
private void OnPutTimer(object state)
{
try
{
using (var db = CsmonDbContext.Create())
{
foreach (var network in Network.Networks)
{
// Get new Tps points from index service and put them in the db
var st = _states[network.Id];
var tpsInfo = _indexService.GetTpsInfo(network.Id);
var newPoints = tpsInfo.Points.Where(p => p.X > st.LastTime).ToArray();
if (!newPoints.Any())
{
continue;
}
st.LastTime = newPoints.Max(p => p.X);
db.Tps.AddRange(newPoints.Select(p => new Tp
{
Network = network.Id,
Time = p.X,
Value = p.Y
}));
db.SaveChanges();
}
}
}
catch (Exception e)
{
// Log exception
_logger.LogError(e, "");
}
// Schedule next time
_putTimer.Change(_periodPut, 0);
}
// Updates the list of nodes, from signal server
private async Task UpdateNetworkNodes(Network network)
{
// Create a connection to the signal server API
using (var client = ApiFab.CreateSignalApi(network.SignalIp, network.SignalPort))
{
// Get the list of nodes from API
var result = client.GetActiveNodes();
// Convert nodes to nodeInfos
var nodes = result.Nodes.Select(n => new NodeInfo(n)).ToList();
// Try to get country and geo-location for all nodes
try
{
// Connect to DB
using (var db = CsmonDbContext.Create())
{
// Get nodes, stored in db
var dbNodes = db.Nodes.Where(n => n.Network == network.Id).ToList();
// Add new nodes into db and update existing
foreach (var node in nodes)
{
var dbNode = dbNodes.FirstOrDefault(n => n.PublicKey.Equals(node.PublicKey));
if (dbNode == null)
{
db.Nodes.Add(new Node(node, network.Id));
}
else if (!node.EqualsDbNode(dbNode))
{
db.Nodes.Update(node.UpdateDbNode(dbNode));
}
}
db.SaveChanges();
// Get Non-Active nodes from db
foreach (var node in dbNodes.Where(n => !nodes.Any(d => d.PublicKey.Equals(n.PublicKey))))
{
nodes.Add(new NodeInfo(node));
}
// Find geo data for nodes
foreach (var ip in nodes.Select(n => n.Ip).Distinct())
{
// Try to find node in db by ip address
var location = db.Locations.FirstOrDefault(l => l.Ip.Equals(ip));
// If not found, try to get info by ip using ipapi.co web service
if (location == null)
{
try
{
var uri = new Uri("https://ipapi.co/" + $"{ip}/json/");
var nodeStr = await GetAsync(uri);
nodeStr = nodeStr.Replace("\"latitude\": null,", "");
nodeStr = nodeStr.Replace("\"longitude\": null,", "");
location = JsonConvert.DeserializeObject <Location>(nodeStr);
location.Ip = ip;
if (location.Org.Length > 64)
{
location.Org = location.Org.Substring(0, 64);
}
// Store data in db
db.Locations.Add(location);
db.SaveChanges();
}
catch (Exception e)
{
_logger.LogError(e, "");
continue;
}
}
// Set location data to nodes
foreach (var nodeInfo in nodes.Where(n => n.Ip.Equals(ip)))
{
nodeInfo.SetLocation(location);
}
}
}
}
catch (Exception e)
{
_logger.LogError(e, "");
}
// Collect additional info about nodes from the network
try
{
using (var cnt = ApiFab.CreateReleaseApi(network.Ip))
{
var page = 0;
while (true)
{
var writers = cnt.WritersGet(page++);
if (!writers.Writers.Any())
{
break;
}
foreach (var writer in writers.Writers)
{
var key = Base58Encoding.Encode(writer.Address);
var node = nodes.FirstOrDefault(n => n.PublicKey == key);
if (node == null)
{
continue;
}
node.TotalFee = ConvUtils.FormatAmount(writer.FeeCollected);
node.TimesWriter = writer.TimesWriter;
}
}
}
}
catch (Exception e)
{
_logger.LogError(e, "");
}
// Hide Ip addresses before output
foreach (var nodeInfo in nodes)
{
nodeInfo.HideIp();
}
// Put the ordered list into the storage
_states[network.Id].Nodes = nodes.OrderByDescending(n => n.Active).ThenBy(n => n.Ip).ToList();
}
}